Hello,
You're device is missing some key information about itself do to corrupted records in the memory. There is a way to restore them.
For that you will need to flash the firmware to 7.2.5 or older and then I will connect to you remotely to do the restoration procedure.
For that, DM me with the SN of the router from the back of the device, I will need that to collect the necessary information about the device to put it back in.
Also, we will need to agree on a timeslot for the remote. I would prefer to use anydesk for this